Self-closing oil cup



Nov. 19, 1929. A. E. STRGMBERG 1,736,229

SELF CLOSING 01p CUP "Filed Jan. 26, 1928 2 Sheets-Sheet 1 Ji -J 1 7%94 I I K Egg '7 Elgz? VII/17'?! I 4 2f 5 7 I I 1929- AVE. A. STROIMBERG 1,736,229

SELF CLOSING OIL CUP Filed Jan. 26, 1928 2 SheetsSheet 2 Ei j? f? i atented New. 19, 192% ANDERS ERIK ALLANSON srnonnnas, or srooxnomvr, swnnnmiassrenon Tonya AKTIEBOLAGET dance, or srooxnonmswnnnn, A oonronnrrou SELF-CLOSING OIL CUP Application filed January 26, 1928, Serial No.1249383; nd inGermany February :1, 19217.

The present invention relates to the kind of self-closing oil cups in which the springoperated lid is provided with a depending flange encircling the upper rim of the cup.

7 One of, the advantages characterizing oil cups with lids of this kind is that they efficiently prevent dust from entering the cup;

The essential object of the invention is the provision in such cups in a suitable and cheap manner from a manufacturing point of view of means for fastening the upper.

end of the spring to the lid without the necessity of deforming the lid in any way whatever orproviding it with holes, slots or the like.

In the accompanying drawing four embodiments of the invention are shown by way of example on an enlarged scale, Figures 1-5 showing one of the embodiments of the invention, Figures 6-9 the second em bodiment, Figures 1044 the third embodiment and Figures 15 and 16 the fourth embodiment. I

Figure 1 shows the oil cup in vertical section with the lid in the open position, Figure 2 shows the inside and the bottom of the cup and Figure .3 the upper cup-shaped plate for the fastening of the spring. Fig? ure 4 is a side elevation of the plate viewed at right angles to Figure 3. Figure 5'shows the lid from the side before receiving the plate for fastening the spring. The Figures 6, 7 and 8 are illustrations correspondingto the Figures 1, 3 and 4 of thesecond embodiment. Figure 9 shows the lid in section.

Figure 10 is a view corresponding to Figure 1. Figures 11 and 12 show the plate from the side and from above respectively.

Figures 13 and 14 show the lid in vertical section and from above respectively. Figure 15 is a vertical sectional view of the lid plate and Figure 16 is a horizontal view of the plate, shown in Figure 15.

1 is the oil cup, 2 the lid and 3 the spring, which tends to bring the lid into the closed position or to keep it there.

The plate serving for the fastening of the upper end of the spring bears the reference number 4.

The dimensions and the shape of the plate When the cupll; 'is' pressediftwo holes 9 are such that when pressed downintothe depresslon 1n the. 11d 1' 1n dlrect on towards the inside of the upper or flat part of the lid the sides of the plate are brought into frictional engagement with and securely held bythe flange 5 of the lid, said flange .inithe closed position-of the lid, encircling-the up} per part of the cup 1. For-this reason the plateshould have a somewhat larger diameter than theinner diameter'of the flangebi 1 If, we

however, the? platefis cup-shaped, that; is slightly I curved in a downward direction as shown inthe drawing at 6, thediametet of the plate may originally be equal toor even side of the flange 5, the pressure'of the pressingftool against the convex side of the flexure 6 when the plate is pressed down into the lid having theeffect-of tsQmewhat increasslight'ly less fthantheidiameteruof" the :in- 265' ingsthedi ameter of the. plate. .In addition the curved part 6 of the plate & has the object of guiding the lid towa-rdsthecentre of the cup whenthe lid, is closedmnder :the

action of the spring. This .is of particular importance if the free end ofthe flange. 5 7

of. the lid is not turned out as shown in the figure, but is made fullycylindrical,;as it may happen that the flange ofthe liddoes not come-down'over the cup but is caught on the rim ofthe cup unless the plate is cup-shaped. When :the platea lqis made a vlug 7 orthe,like is stampedout'of it,;the

endiof the Spring gbrolighb into. e gagement W h;t u; awhenthe lid and them]? p ttqgether.

are istamped..,out in its bottom (Figure 2) so that a preferably up-turne d bridge 8,:is formed.- .Thellowe-rv end: of they-spring is In this way theinsertionofa separate pin or the like in thebottom of the'cup is avoided.

brought intoe'ngagement with this bridge. 0

In this way of carrying out the invention the lid is provided with aprojection 10 which serves as a handle andthe underside of which order that the lid, when the cup is opened} may be displaced in a lateral direction to a Very small extent only.

The construction according to the Figures 69 differs from that already described mainly in that the projection 10' on the lid serving as a handle has been left out and that the space 11 is somewhat larger.

The free end of the flange 5 on the lid is preferably slightly widened to facilitate the lifting of the lid and in order that the latter may easily be turned in any desired direction. f

In the construction shown in the Figures 10-14 the plate 4 is quite fiat but is provided with a lug 12 stamped out of the plate and bent down, into which the upper end of the spring engages. The longitudinal direction of thislug is approximately perpendicular to a diameter passingjthrough the centre of the handle of the lid, the lug being nearer the end of the diameter opposite the handle than the point on the lid from which the latter projects ("see Figures 10 and 12).

' In the construction shown in the Figures 1 15 and 16 the lug 7 is stamped out of a depression 1 3 in theplate 4, said depression sloping from the end nearest the handle to the opposite end.

WhatI claim is I 1. Self-closing oil cup in whichthe springoperated lidis provided with a depending flange encircling the upper rim of the cup,

characterized in that the means for fastening the upper end of the spring comprises a plate (4) pressed down intothe'lid, said plate being retained in its position by'frictional engagement with the flange (5) of the lid.

2. A self-closing oil cup of the type in cluding a lidhaving a depending flange for encircling the upper rim of the cup, a closing spring, and means carried by the lid for connecting the spring theretoycharacterized by the fact that the depending flange of said lid retains the said means within the lid by frictional engagement therewith. I

.3. A self-closing oil cup as set forth'in claim 2, wherein the s'aid'means has a lug 7 depending therefrom for receiving the end of the spring, said lug beingotf center with p respect to the rim of thejcup and cooperating with the adj aoent portion of the flange to provide a loose hinge connection between said 7 lid and cu'pir In testimony whereof Iaiiix my signature.

ANDERS ERIK ALLANSON STRQMBERG. 

